.waterfull .item li {
    float: left;
    width: 300px;
    margin: 0 10px 30px;
    background: #fff;
    border-radius: 6px;
    position: relative;
    /* overflow: hidden; */
    box-shadow: 0 5px 10px rgba(0, 0, 0, .1);
}

.waterfull .item li .a-img {
    width: 100%;
    display: block;
    position: relative;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
    overflow: hidden;
}

.waterfull .item li .a-img img {
    width: 100%;
    display: block;
}

.waterfull .item li .content {
    padding: 0 10px;
}

.waterfull .item li .content,
.waterfull .item li .time {
    border-bottom-left-radius: 6px;
    border-bottom-right-radius: 6px;
    overflow: hidden;
}

.waterfull .item li .item_head {
    padding: 10px 0;
    overflow: hidden;
}